Motul Marine Tech 4T 25W40 Boat Oil SpecificationsMotul Inboard Tech 4T grade 25W40 marine oil with Technosynthese techonology is a latest generation lubricant designed for inboard 4 stroke petrol and diesel engines n/a or turbocharged that require the NMMA FC-WTM standard : Mercury Verado Mercruiser Nissan... It protects against rust in humid and saline conditions neutalizes acidic residue from fuel combustion and improves the engine's lifespan. Its high detergency prevents clogging and deposits in the engine rust and foaming.Nautical engines run in demanding conditions : often at full power in low temperatures increasing engine wear. In order to keep your nautical engines running smoothly Motul offer a wide range of specially formulated lubricants that guarantee the best protection